Goodwe ET Series User manual

ET SERIES USER MANUAL
HYBRID INVERTER
Offical website
JIANGSU GOODWE POWER SUPPLY TECHNOLOGY CO.,LTD
No. 90 Zijin Rd., New District, Suzhou, 215011, China
www.goodwe.com
[e-mail]
PV Master App SEMS Portal App SEMS Portal website
www.semsportal.com
LinkedIn
340-00446-01
Ver 1.0
2020-09-24

01 INTRODUCTION
TABLE OF CONTENTS
1.1 Introduction to Operating Modes .................................................................................... 01
1.2 Safety & Warnings ............................................................................................................... 02
1.3 Product Overview ............................................................................................................... 04
03 MANUAL OPERATION
3.1 Wi-Fi Configuration ............................................................................................................. 19
3.2 PV Master App ...................................................................................................................... 20
3.3 CEI Auto-Test Function ....................................................................................................... 20
3.4 Startup/shutdown Procedure ........................................................................................... 20
04 OTHER
4.1 Error Messages ................................................................................................................... 21
4.2 Troubleshooting ................................................................................................................. 23
4.3 Disclaimer ........................................................................................................................... 28
4.4 Technical Parameters ........................................................................................................ 29
4.5 Other Tests ........................................................................................................................... 33
4.6 Quick Checklist To Avoid Dangerous Conditions ........................................................... 33
02 INSTALLATION INSTRUCTIONS
2.1 Unacceptable Installations ............................................................................................... 05
2.2 Packing List ......................................................................................................................... 05
2.3 Mounting ............................................................................................................................. 06
2.3.1 Select Mounting Location ........................................................................................ 06
2.3.2 Mounting .................................................................................................................... 07
2.4 Electrical Wiring Connections .......................................................................................... 09
2.4.1 PV Wiring Connections ............................................................................................. 09
2.4.2 Battery Wiring Connections ..................................................................................... 10
2.4.3 On-Grid & Backup Connections .............................................................................. 11
2.4.4 Smart Meter & CT Connections ............................................................................... 14
2.4.5 BMS Connection ........................................................................................................ 15
2.5 DRED/Remote Shutdown Connections ........................................................................... 15
2.6 Earth Fault Alarm Connections ......................................................................................... 18

Mode I
Energy produced by the PV system is used to optimize
self-consumption needs. Excess energy is used to recharge
the batteries and any additional excess energy is then
exported to the grid.
Mode III
(If backup function is included) When the grid fails, the system
automatically switches to backup mode. In this case, the
backup loads can be supplied by both PV and battery energy.
Mode IV
The battery can be charged from the grid and the charging
time/power can be set to various options in the PV Master
App.
Mode II
When there is no PV, and the battery is sufficient , it
cansupply the load together with grid power.
1.1 Introduction to Operating Modes
Note:
The introduction describes the general operation conditions of an ET system.
The operating mode can be adjusted in the PV Master App including the
system layout. The general operating modes for the ET system are shown
below:
01 INTRODUCTION
The ET series, also called hybrid or bidirectional solar inverters, can be applied to solar systems
using PV, batteries, loads and grid systems for energy management. The energy produced by PV
systems can be used to optimize household loads, the excess energy charges the battery, and
once the battery is fully charged any excess energy at that point is exported to the grid.
The battery discharges to support loads when the available PV power is insufficient to meet
self-consumption requirements. If the battery power is insufficient, the system draws power from
the grid to support any loads.
The ET system typically has the following operating modes based on your configuration and
layout conditions. Note: Backup function is optional for German market
Caution!
Failure to observe any warnings contained in this manual may result in injury.
Danger - high voltage and electric shock!
The components of the product can be recycled.
This side up! This package must always be transported, handled and stored
in such a way that the arrows always point upwards.
Danger - hot surface!
No more than six (6) identical packages are to be stacked on top of each other.
The product shall not be disposed of as household waste.
Fragile - The package/product must be handled carefully and should never
be tipped over or slung.
Refer to the operating instructions.
Keep dry! The package/product must be protected from excessive humidity and
must be stored under cover.
This symbol indicates that you should wait at least 5 minutes after disconnecting
the inverter from the utility grid and from the PV panel before touching any inner
live parts.
CE mark
5min
1.2 Safety & Warnings
The ET series of inverters from Jiangsu GoodWe Power Supply Technology Co., Ltd. (also
called GoodWe) strictly complies with related safety rules for product design and testing.
Please read and follow all of the instructions and cautions appearing on the inverter or in the
User Manual during installation, operation and maintenance, as any improper operation
might cause personal injury or property damage.
Explanation of Symbols
02
01

Safety warnings
Any installation or operations on the inverter must be performed by qualified electricians in
compliance with standards, wiring rules and the requirements of local grid authorities or compa-
nies (such as AS 4777 and AS/NZS 3000 in Australia).
Never insert or remove the AC or DC connections when the inverter is running.
Before making any wiring connections or performing electrical operations on the inverter,
all DC and AC power must be disconnected from the inverter for at least 5 minutes to make
sure that the inverter is totally isolated to avoid electric shock.
The temperature of the inverter surface can exceed 60℃ during operation. Make sure it has
cooled down before touching it and make sure the inverter is out of reach of children.
Do not open the inverter cover or change any components without manufacturer's authori-
zation. Otherwise, the warranty for the inverter will be invalid.
The usage and operation of the inverter must follow the instructions in this User Manual.
Otherwise, the protection design might be impaired and the warranty for the inverter will be
invalid.
Appropriate methods must be adopted to protect the inverter from static electricity
damage. Any damage caused by static electricity is not warranted by the manufacturer.
PV negative (PV-) and battery negative (BAT-) on inverter side are not grounded as the
default design. Connecting either PV- or BAT- to EARTH is strictly forbidden.
Any PV modules used with the inverter must have an IEC61730 class A rating, and the total
open-circuit voltage of the PV string/array must be lower than the maximum rated DC input
voltage of the inverter. Any damage caused by PV overvoltage is not covered by the warranty.
When exposed to sunlight, the PV array generates dangerous high DC voltages.
Please operate the inverter according to these instructions, or danger to life may result.
The inverter, with a built-in RCMU, will prevent the possibility of DC residual currents up to
6mA. Thus, in the system, an external RCD (type A) can be used (≥30mA).
In Australia, the output of the backup side in the switchbox should be labelled "Main Switch
UPS Supply". The output on the normal load side in the switch box should be labelled "Main
Switch Inverter Supply".
1.3 Product Overview
Wi-Fi Reset
Note:
[1] Model GW5K/6K/6.5K/8K/10K-ET is normally equipped
with a DC switch. Model GW5KL/6KL/8KL/10KL is
optionally equipped with a DC switch which has the
certification of AS/NZS AS/NZS 5033:2014/Amdt 2:2018.
[2] Only the GW8KL and GW10KL-ET PV2 inputs have 2 pairs
of PV connectors
[3] Optional function in German market
LED Indicators
Backup Port [3] On-Grid Port
Smart Meter Communication Cable
BMS Communication Cable
Battery Terminals
PV Terminals [2]
DC Switch [1]
Wi-Fi Box
DRED & Remote Shutdown
To Smart Meter
To Battery
HYBIRD LED INDICATORS
INDICATOR
SYSTEM
BACKUP
BATTERY
GRID
ENERGY
COM
Wi-Fi
FAULT
STATUS
ON = System is ready BLINK = System is starting up OFF = System is not operating ON = Backup is ready/power available OFF = Backup is off/on power available ON = Battery is charging BLINK 1 = Battery is discharging BLINK 2 = Battery is low/soc is low OFF = Battery is disconnected/not active ON = The grid is active and connected OFF = The grid is not active ON = Wi-Fi is connected/active BLINK 1 = Wi-Fi is resetting BLINK 4 = Wi-Fi server problem OFF = Wi-Fi is not active ON = A fault has occurred BLINK4 = CT wiring fault OFF = No fault EXPLANATION
SYSTEM BACKUP BATTERY GRID ENERGY COM Wi-Fi FAULT
BLINK = The grid is active but is not
connected
BLINK 1 = Supplying energy to the grid/
zeroing
BLINK 1 = Meter communications are OK,
BMS communications have failed
BLINK 2 = BMS communications are OK,
meter communications have failed
BLINK 2 = Wi-Fi is not connected to the
router
BLINK1 = Overload of backup output/
reduce load
BLINK 2 = Supplying energy to the grid/
selling
OFF = The grid is not connected or the
system is not operating
OFF = BMS and meter communications
have both failed
ON = Consuming energy from the grid/
purchasing
ON = BMS and meter communications
are OK
04
03

2.1 Unacceptable Installations
INSTALLATION INSTRUCTIONS 02
2.2 Packing List
Single PV string cannot connect to multiple inverters
Please avoid the following installations types, which will damage the system or the inverter.
Upon receiving the hybrid inverter, please check if any of the components listed below are missing
or broken.
PV PV
The inverter battery input must not be
connected to incompatible batteries.
The backup side cannot be
connected to the grid.
The on-Grid or backup side cannot
be connected to any AC generator
directly.
On-Grid Battery Backup On-Grid Backup
For the general version, backup cannot connect in parallel.
For advanced applications, please contact our after-sales
department.
Backup Back-Up
Load
On-Grid
Backup
The Inverter does not support
off-grid functions in gridless areas.
One battery bank cannot be
connected to multiple inverters.
Load
One meter cannot be connected to
multiple inverters. Different CTs
cannot connect to the same line cable.
Smart Meter
Battery
Pin
Terminal
PE
Terminal
Expansion
Bolts
AC Cover
Fixed
Screw
Positive PV Plug
or
Positive &
Negative BAT
&or
Negative PV Plug
Inverter
ET SERIES USER MANUAL
HYBRID INVERTER
User Manual Quick Installation
Instructions
Smart Meter
With 3 CT
Wall-Mounted
Bracket
For inverter protection and convenient maintenance, the mounting location for the inverter
should be selected carefully based on the following rules:
No part of the system should not block the switch or breaker from disconnecting the inverter from
DC and AC power.
Rule 1. The inverter should be installed on a solid surface which is suitable for inverter's dimen-
sions and weight.
Rule 2. The inverter should be installed vertically or be on a slope with a maximum value of 15°.
2.3 Mounting
2.3.1 Select Mounting Location
300mm
500mm
200mm 200mm
Upward
Downward
Front
Both sides
---------- 300mm
------ 500mm
------------- 300mm
-------- 200mm
Keep away from sunlight. Keep the inverter dry. Keep the inverter clear of snow. Sun Rain Accumulated snow
300mm
Rule 3. The ambient temperature should be lower than 45°C.
(High ambient temperatures will cause power derating of the inverter.)
Rule 4. The inverter installation should be protected by shelter from direct sunlight or bad weath-
er such as snow, rain, lightning etc.
Rule 5. The inverter should be installed at eye level for convenient maintenance.
Rule 6. The product label on the inverter should be clearly visible after installation.
Rule 7. Leave enough space around the inverter according to the figure below.
Max
15°
Incompatible battery
Generator
bluetooth
Module
Wi-Fi
Module
06
05

110mm 120mm
120mm
A lock is not included in the package
and can be purchased by the user.
Note: The bearing capacity of the wall must be greater than 25kg. Otherwise, the wall may not be able to
prevent the inverter from dropping.
2.3.2 Mounting
The inverter must not be installed near flammable or explosive materials or near
equipment with strong electromagnetism.
The inverter is suitable for mounting on concrete or other non-combustible surfaces only.
Step 1
Step 2
Step 3
Step 4
Please use the mounting bracket as a template to drill 4 holes in the correct positions (e.g.
10mm in diameter and 80mm in depth).
Use the expansion bolts in the accessory box and tightly attach the mounting bracket to
the wall.
The ground cable shall be connected to the ground plate on the grid side.
Carry the inverter by holding the heat sink on two sides and place the inverter on the
mounting bracket.
The inverters can be locked for anti-theft purposes if this is necessary for individual
requirements.
Wall Bracket
Self-Tapping Screws
Expansion Pipe
08
07

Note: There are MC4, QC4.10, or Amphenol plugs in the accessory box. The connection details are
shown below.
Note:
1. Please use the PV plugs and connectors
from the accessory box.
2. The PV cable should be a standard
2.5–4mm2.
Note: There will be a clicking sound if the connectors are inserted
correctly into the PV plugs.
The polarity of the PV strings must not be connected in a reverse manner. Otherwise,
the inverter could be damaged.
For the GW8KL-ET and GW10KL-ET models, use two separate PV plugs if the short-cir-
cuit current of the PV array connected to inverter's PV2 input is greater than 15A.
Make sure that the battery switch is off and that the nominal battery voltage meets ET series specifications before
connecting the battery to the inverter. Make sure the inverter is totally isolated from both PV and AC power.
Please strictly follow the requirements and steps listed below. Using inappropriate wires may cause bad contacts and
high impedances, which are dangerous for the system.
2.4.2 Battery Wiring Connections
Please be careful of any electric shock or chemical hazards. For batteries without a built-in DC
breaker, make sure that an external DC breaker (≥40A) connected.
Make sure the battery is under normal working condition （such as battery voltage and BMS
setting etc.）when the inverter and battery is to be used. If you need to use the hybrid inverter as
a Grid-tied inverter, please contact GoodWe after-sales.
Before connecting PV panels/strings to the inverter, please make sure all requirements listed
below are followed:
• The total short-circuit current of a PV string must not exceed the inverter's max DC current. (For
models GW8KL-ET and GW10KL-ET, PV2 has 2 pairs of PV connectors which can accept 2PV
strings with a total short-circuit current of no more than 22A)
• The minimum isolation resistance to ground of the PV string must exceed 19.33kΩ in case of any
shock hazard.
• The PV string must not be connected to the earth/grounding conductor.
• Use the right PV plugs in the accessory box. (BAT plugs are similar to PV plugs. Please check
before using them.)
Step 1
Step 3
2.4 Electrical Wiring Connection
2.4.1 PV Wiring Connection
Prepare the PV cables and PV plugs.
Screw the cap on and plug it into the inverter side.
2.5-4mm27mm
2.5-4mm27mm
Step 2
Connect the PV cable to the PV connectors.
Note:
1. The PV cable must be tightly crimped onto
the connectors.
2. For Amphenol connectors, the limit buckle
cannot be pressed.
3. There will be a clicking sound if the connec-
tors are inserted correctly into the PV plugs.
Use the correct BAT plugs from the accessory box.
The maximum battery current is 25A. Please use the tin-plated cables for which the cross section
ranges from 4 to 6mm² (AWG 10). The battery cable requirements are shown in Figure 2.4.2-1.
C
A
B
Figure 2.4.2-1
Connection process for battery wiring
Step 1
Step 3
Open the spring using a screwdriver.
Insert the cable gland into the sleeve (C).
Tighten the cable gland to 2 Nm torque (D).
Use a suitable and calibrated torque
wrench, size 15. Use an open-jaw wrench,
size 16, to hold the connector in place.
D
C
Size 15
2 Nm
Step 2
Step 4
Carefully insert the stripped wire with
twisted litz wires all the way into (A). The
litz wire ends must be visible in the spring.
Close the spring. Make sure that the spring
is snapped into (B).
Insert two BAT
connectors into the
inverter BAT input.
There will be a
clicking sound if the
connectors are
inserted correctly.
B
click!
A
MC4 /QC4.10 Series AMPHENOL Series
Grade
A
B
C
Description
Outside diameter of insulation
Conductor core section
Conductor core length
Value
5.5-8.0 mm
4-6 mm2
15 mm
MC
MC
10
09

Step 4
Note:
1. The neutral cable shall be blue, the line cable shall be black or brown (preferred), and the protective
earth cable shall be yellow-green.
2. For AC cables, the PE cable shall be longer than the N&L cables. This provides protection in case the AC
cable slips or is removed, the ensuring that the earth conductor will be the last cable to take the strain.
Make sure the inverter is totally isolated from any DC or AC power before connecting
the AC cable.
2.4.3 On-Grid & Backup Connection
An external AC breaker is needed for the on-grid connection for isolation from the grid when
necessary.
Note: Backup function is optional for only German market, even though the hardware connector is always
there.
The requirements for the on-grid AC breaker are shown below.
Requirement of AC cable connected to On-Grid and Back-Up side.
1. Use separate AC breakers for individual
inverters.
2. On the AC side, an individual breaker
should be connected between the
inverter and grid but before any loads.
AC Breaker
AC Breaker
AC Breaker
Grid
AC breaker
Loads
Prepare the terminals and AC cables according to the correct table.
Step 1
ABC
D
Use a screwing
torque of
2.0‒2.5Nm
Special adjustable settings
The inverter has a field where the user can set functions, such as trip points, trip time, time of
reconnection, active and invalid of QU curve, and PU curve. These functions can be adjusted by
using special software. If interested, please contact the after-sales department.
Place the AC cable through the terminal cover
as shown in the figure.
Note: Please use the terminals in the accessory
box.
Press the connectors tightly on the cable conductor core.
Note: Make sure the cable jacket is not locked within the connector.
1. Connect the assembled AC cables to AC terminals with a fastening torque of approxi-
mately 2.0-2.5 Nm.
Note: (If the inverter has backup function) Connect the backup terminals before connecting
the on-grid terminals. Make sure they are not connected to the wrong side.
2. Lock the cover and screw on the cap.
Step 2
Step 3
Cables
Screw Cap
AC Sheet Cover
The Insulator
Single Hole
Seal Ring
Inverter model
GW5K/GW5KL-ET
GW6.5K/GW6KL-ET
GW8K/GW8KL-ET
GW10K/GW10KL-ET
AC breaker specifications
25A/400V (e.g. DZ47-60 C25)
25A/400V (e.g. DZ47-60 C25)
32A/400V (e.g. DZ47-60 C32)
32A/400V (e.g. DZ47-60 C32)
Grade
A
B
C
D
Description
Outside diameter
Separated wire length
Conductor wire length
Conductor core section
Value
13-18 mm
20-25 mm
7-9 mm
4-6 mm2
Grid
Note: The absence of an AC breaker on the backup side will lead to inverter damage if an electrical short
circuit occurs on the backup side.
12
11

OFF
ON
2.4.4 Smart Meter & CT Connections
Make sure the AC cable is totally isolated from AC power before connecting the Smart
Meter and CT.
Declarations for the backup function
The backup outputs of the ET hybrid inverters have overload capability.
For details please refer to the technical parameters in the ET series inverter section (Page 29).
The inverter has self-protection derating at high ambient temperatures.
The statement below lays out the general policies governing the series EH, EM, ES, ET, BH, BT and
SBP energy storage inverters.
1. For hybrid inverters (e.g. Series EH, EM, ES, and ET), a standard PV installation typically consists
connecting the inverter to both panels and batteries. When the system is not connected to the
batteries, the manufacturer strongly advises that the backup function not be used. The manu-
facturer will not honour the standard warranty and will not be liable for any consequences
arising from users not following this instruction.
2. Under normal circumstances, the backup switching time is less than 10ms (e.g. the minimal
condition to be considered as a UPS-level switching). However, some external factors may cause
the system to fail in backup mode. Due to this, we recommend that users to be aware of these
conditions and follow the instructions as described below:
• Do not connect loads which are dependent on a stable energy supply for reliable operation.
• Do not connect the loads which may, in total, exceed the maximum backup capacity.
• Try to avoid those loads which may create very high start-up current surges such as inverters,
air conditioners, high-power pumps etc.
• Due to the battery condition itself, the battery current might be limited by factors including but
not limited to temperature and weather etc.
Acceptable loads are shown below:
• Inductive Loads: 1.5 P non-frequency conversion air conditioners can be connected to the
backup side. Two or more non-frequency conversion air conditioners connected to backup side
may cause the back-up mode to be unstable.
• Capacitive Loads: A total power ≤ 0.6 × nominal power of the model. (Any load with high startup
current is not acceptable.)
• For complicated applications, please contact the GoodWe Solar Academy.
Declarations for backup overload protection
The inverter will restart itself if overload protection is triggered. The preparation time for restarting
will be increasingly long (one hour at most) if an overload recurs. Take the following steps to imme-
diately restart the inverter.
Decrease the backup load power to within the maximum limitation.
On The PV Master App → Advanced Settings → Click "Reset Backup Overload History".
A Smart Meter with the CT in product box is compulsory for ET system installation and is used to
detect the grid voltages and current directions and also is used to provide the operating
condition of the ET inverter via RS485 communications.
Note:
For convenient maintenance, please install a SP 3T switch on both the backup and on-grid sides. Then it is
adjustable to support load by backup or by grid or default settings.
Note:
1. The Smart Meter with CT is already configured ; please do not change any settings on the Smart
Meter.
2. One Smart Meter can be used with only one ET inverter.
3. Three CTs must be used for one Smart Meter and must be connected on the same phase with the
Smart Meter power cable.
Note:
1. Please use the Smart Meter with the 3 CTs contained in the product box.
2. The CT cable is 3m long as a default and can be extended to maximum of 5m.
3. The Smart Meter communication cable (RJ45) is attached on the inverter ("To Smart Meter" cable),
and be extended to a maximum length of 100m, and must use a standard RJ45 cable and plug, as
shown below:
1. The backup load is supplied from backup side.
2. The backup load is isolated.
3. The backup load is supplied from grid side.
Smart Meter & CT connection diagram
Backup
4Pole 3Throw
1
2
3
On-Grid
Grid
Load
PE
N
L3
L2
L1
Grid
Load
CT A connect to L1
CT B connect to L2
CT C connect to L3
CT C
CT B
CT A
To Smart Meter
Power Meter
Grid side
Smart Meter
14
13

NO.
Function
1
DRM1/5
2
DRM2/6
3
DRM3/7
4
DRM4/8
5
REFGEN
6
COM / DRMO
Unscrew this plate from the inverter.
Note: DRED should be connected to
the "DRED Port" as shown in the figure.
Step 1
Step 2
1. Pull out the 6-pin terminal and disconnect the
resistor located on this terminal.
2. Pull the resistor out and leave the 6-pin
terminal for the next step.
Note: The 6-pin terminal in the inverter has the
same function as DRED. Please leave it in the
inverter if no external device is connected.
Step 4
Detailed pin functions of each port on the ET
BMS：CAN communication is configured by default. If 485 communication is used, please contact
the after-sales department to replace this with the correct communication line.
2.4.5 BMS Connection
BMS is used to communicate with the connected compatible lithium
battery.
There is a 3m communication line marked "To Battery" on the inverter
Connection steps
1. Confirm that the battery and inverter power lines are connected (refer to 2.4.2 Battery Wiring Connections)
2. Connect the BMS communication line of the inverter to the communication interface of the lithium battery
3. Select the corresponding battery through the APP (please follow the user manual of the PV master app)
2.5 DRED (Remote shutdown) Connection
DRED (Demand response enabling device) is used for Australian and New Zealand installations (and is also used
to provide the remote shutdown function in European countries) in compliance with Australian and New
Zealand safety requirements (or for European countries). The inverter integrates control logic and provides an
interface for DRED. The DRED is not provided by the inverter manufacturer.
Detailed connection of DRED (REMOTE SHUTDOWN) is shown below:
POWER
ENERGY
COM
Steps 1-3 For DRED
1. Put the cable through the plate.
2. Wiring from the No. 5 and 6 holes.
Connect the DRED terminal to the correct position on the inverter.
Step 3-2 For Remote Shutdown
1. Place the DRED cable through the plate.
2. Connect the DRED cable to the 6-pin terminal.
The function of each connection position is
shown below.
2.6 Earth Fault Alarm Connection
ET series inverters comply with IEC 62109-2 13.9. The fault indicator LED on the inverter cover will
light up and the system will email the fault information to customer.
123456
Screw Nut
Insulator Screw Cap
RS485
Communication Board
CableSingle Hole
Seal Ring
123456
Screw Nut
Insulator Screw Cap
RS485
Communication Board
CableSingle Hole
Seal Ring
Position
1
2
3
4
5
6
7
8
Colour
Orange & white
Orange
Green & white
Blue
Blue & white
Green
Brown & white
Brown
EMS
485_A
485_B
485_A
NC
NC
485_B
NC
NC
BMS Function
485_A2
NC
485_B2
CAN_H
CAN_L
NC
NC
NC
Smart Meter Function
NC
NC
485_B1
NC
NC
485_A1
485_B1
485_A1
Smart Meter LED indications
STATUS
POWER
ENERGY
COM
OFF
Not working
/
ON
Working
Importing
Blinks one time when data are transferred to the inverter
Blinking
/
Exporting
NO.
Function
5
REFGEN
6
COM / DRMO
16
15

Note: According to Australian safety requirements, the neutral cables of the on-grid side and backup side
must be connected together. Otherwise, the backup function will not work.
Note: Backup function is optional in German market. Please leave backup side empty if backup function is not available in the
inverter.
This diagram is an example for an application in which neutral is separated from the PE in the distribution box.
For countries such as China, Germany, the Czech Republic, Italy, etc., please follow local wiring regulations!
This diagram is an example for an application that neutral connects with the PE in a distribution box.
For countries such as Australia, New Zealand, South Africa, etc., please follow local wiring regulations!
System connection diagrams
Distribution box
On-Grid
Backup
Battery
L1 L2 L3 N PE
Meter
Meter
L1
L2
L3
N
E-N
Link
Smart
Meter
RCD
N-BAR
Hybrid Inverter
E-BAR
BMS
E-BAR
Grounding screw hole
in the lower right corner
Grounding screw hole
in the lower right corner
RCD
orPE
L1
L2
L3
N
PE
L1
L2
L3
N
PE
L1
L2
L3
N
PE
L1
L2
L3
N
PE
L1
L2
L3
N
PE
L1
L2
L3
N
L1
L2
L3
N
PE
Solar
Array
Distribution box
On-Grid
Backup
Battery
RCD
Normal Loads
L1 L2 L3 N PE
PE
Grid
Hybrid Inverter
BMS
or
N
PE
Solar
Array
Backup
Loads
Backup
Loads
Normal Loads
Grid
Smart
Meter
E-BARE-BAR
RCD
When the inverter is working in backup mode, neutral and PE on the backup side are connected via the internal relay.
Also, this internal relay will be open when the inverter is working in grid-tied mode.
Do not connect this terminal when
the neutral wire and PE wire are
connected together.
1. For batteries with attached breakers, the external DC breaker may be
omitted.
2. Please use CT A for L1, CT B for L2, and CT C for L3. Also, follow the "House
(K) →Grid(L)" direction to complete the connection. Otherwise, there will be an error reminder from the PV Master App.
CT C
CT B
CT A
Battery
① DC Breaker
② AC Breaker
PV Strings
③ AC Breaker
To Battery
⑤ AC Breaker
To Smart Meter
1-Phase
Loads
3-Phase
Loads
Power Meter
④ AC Breaker
Wiring system for the ET series hybrid inverter
Note: This diagram indicates the wiring structure of the ET series hybrid inverter, not the electric wiring
standard.
Load
Please select the breaker according to the specifications below:
①
②③④
25 A/400 V AC breaker
32 A/400 V AC breaker
25 A/400 V AC breaker
32 A/400 V AC breaker
⑤
40 A/600 V
DC breaker
Depends on
household
loads
Inverter
GW5KL/6KL-ET
GW8KL/10KL-ET
GW5K/6.5K-ET
GW8K/10K-ET
Smart Meter
PE
N
L3
L2
L1
Grid
Grid side
18
17

Wi-Fi Reset Button Wi-Fi
RESET
03 MANUAL OPERATION
3.1 Wi-Fi Configuration
This part shows the configuration using a web page.
Wi-Fi configuration is absolutely necessary for online monitoring and maintenance.
Preparation:
1. The inverter must be powered up with battery or grid power.
2. A router with internet access to the website www.semsportal.com is required.
1. Connect Solar-Wi-Fi* to your PC or smart phone (* its
name is the last 8 characters of the inverter's serial
number); Password：12345678.
2. Open your browser and logon to 10.10.100.253
Admin (User): admin; Password: admin.
3. Then click "OK".
1. Click "Start Setup" to choose your router.
2. Then click "Next".
1. Fill in the password of the router, then click
"Next".
2. Click "Complete".
Device information
Firmware version
MAC address
Wireless AP mode
SSID
IP address
Wireless STA mode
Router SSID
Encryption method
Encryption algorithm
Router Password
1.6.9.3.38.2.1.38
60:C5:A8:60:33:E1
Enable
Solar-Wi-Fi
10.10.100.253
Disable
WiFi_Bum-in
WAP/WAP2-PSK
AES
WiFi_Bum-in
A “cannot join the network” error may be caused by:
Save success!
Add the wireless network manually
Please enter the wireless network password:
No router, weak Wi-Fi signal, or the password is not correct
Network name (SSID)
Encryption method
Encryption algorithm
Password (8-63 characters)
Show psk
Help: The wizard will help you to complete setup
within one minute.
Note: The SSID and password are case sensitive. Please make
sure all parameters of the wireless network match those of the
router, including the password.
Click "Complete". the current configuration will take effect after
a restart.
If you still need to configure the other pages of information,
please proceed to complete your required configuration.
The configuration is complete. You can now log on to the
Management page to restart the device by clicking on the "OK"
button.
Click Confirm to complete?
Start Setup
Back Next
Back Complete
Wi-Fi-Test
WPA/WPA2-PSK
AES
Router password
Step 1
Step 2 Step 3
Please select your current wireless network
Help: When the RSSI of the selected Wi-Fi network is below
15%, the connection may be unstable. Please select another
available network or decrease the distance between the
device and router. If your wireless router does not broadcast
its SSID, please click "Next" and manually add the wireless
network.
SSID
Wi-Fi_Burn-in
Wi-Fi_Burn-in
Wi-Fi_Burn-in
Wi-Fi_Burn-in2
RSSI
66
100
70
72
Channel
1
1
1
1
AUTH/ENCRY
WPAPSKWPA2PSK/TKIPAES
WPAPSKWPA2PSK/TKIPAES
WPAPSKWPA2PSK/TKIPAES
WPAPSKWPA2PSK/TKIPAES
Refresh
Back Next
CancelOK
admin
Remember the password (R)
admin
Admin(U):
Password:
10.10.100.253
FA U LTWi-FiCOMENERGYGRIDBATTERYBACK-UPSYSTEM
Wi-Fi reset
Quickly press the reset button.
The Wi-Fi LED will blink for a few
seconds.
Wi-Fi reload
Perform a long press of the reset button
(longer than 3 seconds).
The Wi-Fi LED will double blink until the
Wi-Fi is configured again.
Wi-Fi Reset & Reload
A Wi-Fi reset means restarting the Wi-Fi module. The Wi-Fi settings will automatically be
reprocessed and saved. A Wi-Fi Reload means setting the Wi-Fi module to the default factory
settings.
Note:
1. Please make sure the password and encryption method/algorithm are the same as those of the router.
2. If everything went well, the Wi-Fi LED on the inverter will change from a double blink to 4 blinks and then to a solid status, which means
that the Wi-Fi has successfully connected to the server.
3. Wi-Fi configuration can also be done on the PV Master App. For details, please check the PV Master App.
Note:
The Wi-Fi reset and reload functions are used only when:
1. Wi-Fi loses connection to the internet or cannot connect successfully to the PV Master App.
2. Cannot find the "Solar-Wi-Fi signal" or there are other Wi-Fi configuration problems.
3. Please do not use these buttons if Wi-Fi monitoring is working correctly.
4.If you need to replace the module，Please use the unlock tool
3.2 PV Master App
PV Master is an external monitoring/configuration application for hybrid inverters and is used on
smart phones or tablets for both Android and iOS operating systems. The main functions are
described below:
1. Edit the system configuration to make the system function as the customer requires.
2. Monitor and check the performance of the hybrid system.
3. Wi-Fi configuration.
Please download the PV Master App from the Google Play Store or Apple App Store. You can also
download the App by scanning the QR code located on the back of this User Manual.
For the commission of the inverter please refer the PV Mastera App manual. Please download the PV
Master OPERATION INSTRUCTIONS from
www.goodwe.com
3.3 CEI Auto-Test Function
The PV auto-test function of CEI is integrated into the PV Master App to satisfy Italian safety requirements. For detailed instructions
regarding this function, please refer to "PV Master Operation Instructions".
3.4 Startup/shutdown Procedure
DC switch is used to cut off PV input power while the breaker equipped on the battery is used to cut off battery power.
When you want to shut down the inverter during an event, you should turn off the inverter DC switch and the battery DC breaker.
When you want to start-up the inverter after rectification, you should turn on the inverter DC switch and the battery DC breaker.
95048EHU12345678
4:21 PM 100%
VIRGIN
Waiting
Safety Country
Battery Type
Operation Model
Meter Communication Status
BMS Communication Status
Backup Switch
Anti-Reverse Function Switch
English
Battery-Box H6.4
Normal
CT connection
Alarm warning
On
Off
Overview Param Set
0.00(kW)
0.00(kW)
0.00(kW)
0.00(kW)
?
20
19

4.1 Error Messages
The error messages shown below will be displayed on the PV Master App or reported by e-mail if
an error occurs.
04 OTHER
The sequence of the on-grid wire is incorrect The inverter has detected that the phase angles of L2 and L3
are reversed The L2 and L3 cables are connected in reverse order.
ERROR MESSAGE EXPLANATION REASON SOLUTIONS
Check (use a multimeter) if there is a measurable voltage (it should normally be close to 0 V) between the earth and the inverter frame. If there is a
measurable voltage, this means the neutral and ground cables are not connected well on the AC side. If this happens only in the early morning, at
dawn, or on rainy days with higher humidity and recovers quickly, this may be a normal situation.
Check (use a multimeter) if there is high voltage (which should normally be less than 10 V) between the N and PE cables on the AC side. If the voltage
is greater than 10 V, this means the neutral and ground cables are not connected well on the AC side or it may be necessary to restart the inverter.
1. Check (use a multimeter) to see if the AC side has any voltage present. Make sure that grid power is available.
2. Make sure that the AC cables are connected tightly.
3. If all appears to be working well, please turn off the AC breaker and turn it on again in 5 mins.
1. Make sure the safety country of the inverter is set correctly.
2. Check (use a multimeter) if the AC voltage (between L and N) is within the normal range (also on the AC breaker side)
a. If the AC voltage is high, make sure that the AC cable complies with the requirements stated in the User Manual and that the AC cable is not too long.
b. If the voltage is low, make sure the AC cable is connected well and that the jacket of the AC cable is not compressed into the AC terminal.
3. Make sure that the grid voltage in your area is stable and is within the normal range.
1. Make sure the safety country of the inverter is set correctly.
2. If the safety country setting is correct, please check the inverter display to see if the AC frequency (Fac) is within the normal range.
3. If an FAC failure only occurs a few times and is resolved quickly, this condition could be caused by occasional grid-frequency instability.
1. Attempt to decrease the ambient temperature.
2. Make sure that the installation complies with the instructions in the inverter User Manual.
3. Attempt to shut down the inverter for 15 mins and then start it up again.
1. Use a multimeter to determine if the resistance between the earth and the inverter frame is close to zero. If not, please ensure that the connection
is good.
2. If the humidity is too high, an isolation failure may occur.
3. Check the resistance between PV1+/PV2+/BAT+/PV- to earth. If the resistance is less than 33.3 kΩ, check the system wiring connections.
4. Attempt to restart the inverter. Check to see if the fault still occurs. If not, it means that the fault was caused by an occasional event. Alternatively,
contact the after-sales department.
Try to restart the inverter. Check if the problem recurs. If not, this was an occasional occurrence. Otherwise, contact the after-sales department
immediately.
Try to restart the inverter. Check if the problem recurs. If not, this was an occasional occurrence. Otherwise, contact the after-sales department
immediately.
Try to restart the inverter. Check if the problem recurs. If not, this was an occasional occurrence. Otherwise, contact the after-sales department
immediately.
Try to restart the inverter. Check if the problem recurs. If not, this was an occasional occurrence. Otherwise, contact the after-sales department
immediately.
Decrease the backup loads to make sure the total load power is lower than nominal backup output power (please refer to page 11).
Public grid power is not available (e.g.
power has been lost or the on-grid
connection has failed)
The PV or BAT voltage is too high
The ground leakage current is too high
The total voltage (open-circuit voltage) of each PV string
is higher than the maximum DC input voltage of the
inverter or the battery voltage is higher than the
maximum BAT input voltage of the inverter
Utility Phase Failure
Utility Loss
VAC Failure
Isolation Failure
Ground Failure
Relay Check Failure
The grid voltage is not within the
permissible range
The grid frequency is not within the
permissible range
The temperature inside the inverter is
too high
Self checking of the relay has failed
Internal communication has failed
The BUS voltage is too high
The backup side is overloaded
The inverter has detected that the AC voltage is beyond
the normal range required for safety in the country of use.
The inverter cannot detect a connection to the grid
The inverter has detected that the grid frequency is beyond
the normal range required for safety in the country
The inverter's working environment has led to a
high-temperature condition
The ground insulation impedance of
the PV string is too low
Isolation failure could be due to multiple causes such as
the PV panels are not grounded well, the DC cable is
broken, the PV panels are old, or the ambient humidity is
relatively high, etc.
The neutral and ground cables are not connected well
on the AC side or this may be an occasional failure
The inverter has detected a high DC component in the AC
output
This is caused by a strong external magnetic field, etc.
This is caused by a strong external magnetic field, etc.
The total backup load power is greater than the nominal
backup output power
A ground failure can be due to multiple causes such as
the neutral cable on the AC side is not connected well or
the ambient humidity is relatively high, etc.
/
/
/
DC Injection High
EEPROM R/W Failure
SPI Failure
DC Bus High
Backup Overload
FAC Failure
PV/BAT Overvoltage
Over Temperature
1. Check if the PV string Voc is lower than the Max PV input voltage of the inverter. If the Voc of the PV string is high, please decrease the number of
PV panels to make sure that Voc is within the maximum DC input voltage range of the inverter.
2. Check if the battery voltage is lower than the maximum battery input voltage of the inverter. If the battery voltage is high, please decrease the
number of battery packs to make sure the voltage is within the maximum battery input voltage range of the inverter.
22
21

ET does not start up with battery only
Solution:
Make sure that the battery voltage is greater than 180V. Otherwise, the battery cannot start the ET.
ET did not start up with PV only
Solution：
1. Make sure the PV voltage is greater than 180 (230 V is needed to enter on-grid mode).
2. Make sure that, for the connection between the ET and PV panels, the polarities are (+/-) not
reversed.
The ET hybrid inverter does not discharge or output without the PV or when the PV
power is less than the load power
Solution:
1. Check whether the communications between the ET and Smart Meter are OK.
2. Make sure the load power is greater than 150W.
a. The battery will not discharge continuously unless the load power is greater than 150W.
b. If the battery does not discharge when the Meter power is greater than 150W, please check the
Smart Meter & CT connections and directions.
3. Make sure the SOC (State of discharge) is greater than 1-DOD (Depth of discharge). Or, if the
battery is discharged to below 1-DOD, the battery will only discharge again when SOC is charged
to（20%+1-DOD/2 (if battery discharge is needed immediately, the user should restart the
battery).
4. Check on the APP whether the charge time has already been set because during the charge time,
the battery will not discharge (battery will charge in priority during times of concurrent charge/-
discharge).
The battery does not charge when the PV power is greater than the load power
Solution：
1. Check the discharge time setting on the APP.
2. Check if the battery is fully charged and also if the battery voltage reaches the "charge voltage".
High power fluctuations during battery charge or discharge
Solution：
1.Check if there are fluctuations in load power.
2.Check if there are fluctuations in PV power.
Problems During Operation
• Battery connections: Confirm that the connections between the ET and battery and that the
polarities (+/-) are not reversed. Refer to figure 4.2-1
• PV input connection: Confirm the connections between the ET and PV panels and that the
polarities (+/-) are not reversed. Refer to figure 4.2-2.
• On-grid & backup connections: Confirm that the on-grid is connected to the power grid and
that the backup is connected to the loads and that the polarities (e.g. L1/L2/L3/N are in
sequence) are not reversed. Refer to figure 4.2-3.
• Smart Meter & CT connections: Make sure that the Smart Meter and CT are connected between
the house loads and the grid and follow the Smart Meter direction sign on the CT. Refer to figure
4.2-4.
4.2 Troubleshooting
Checks Before Turning On AC Power
Figure 4.2-2 Figure 4.2-4
Note: For compatible lithium batteries, the BMS status will display "Normal" after selecting the correct
battery company.
Battery settings, BMS communication and safety country setting:
After connecting the Solar-Wi-Fi* (*The Wi-Fi signal is named as the last 8 characters of the invert-
er's serial number.). Check the PV Master App "Param" to make sure that the battery type is the
same as was installed. Also check that the "Safety Country" setting is correct. If it is not correct,
please set is correctly in “Set”.
Checks At Startup And Turning On AC Power
① Power LED
② Energy consumption LED
③ Communications LED
④ Reset switch
⑤ USB Port
Grid
House
Loads
Param
Battery (Battery-Box H 11.5)
Battery Status
Battery Data
BMS Status
SOH (From BMS)
Protocol Code
Charge Current Limit (From BMS)
Discharge Current Limit (From BMS)
Waring (From BMS)
Temperature (From BMS)
SOC: 79%, Discharge
479.9V / 0.0A / 0.08kW
Normal
100.0%
256
20.0A
25.0A
Normal
24.6℃
Overview Param Set
Inverter
SN
Firmware Version
Safety Country
Work Status
Error
93648ENU172W0003
02024
Brazil
Normal (Backup)
Figure 4.2-1 Figure 4.2-3
24
23

Questions & Answers (Q & A)
About the Wi-Fi Configuration
Q: Why can't I find the Solar-Wi-Fi* signal on mobile devices?
A: Normally the Solar-Wi-Fi* signal can be seen immediately after inverter has powered up.
However, the Solar-Wi-Fi signal will disappear when the ET connects to the internet. If changes
to the settings are required to connect to the router for changes. If you cannot find the Wi-Fi
signal or connect to the router, please try to reload the Wi-Fi (please refer to the ET User Manual
page 17).
Q: Why can't I connect to the Solar-Wi-Fi* signal on my phone?
A: The Wi-Fi module can only connect to one device at a time. If the signal is already connected to
another device at the same time, you will not be able to connect to the signal.
About Battery Operation
Q: Why does the battery not discharge when the grid is not available but it discharges
normally when the grid is available?
A: On the APP, the off-grid output and backup function should be turned on to force the battery to
discharge under off-grid mode.
Q: Why is there no output on the backup side?
A: For backup supply, "Backup Supply" on the PV Master App must be turned on. In off-grid mode
or when the grid power is disconnected, the "Off-Grid Output Switch" function must be turned
on as well.
Note: When turning the "Off-Grid Output Switch" on, do not restart the inverter or battery. Otherwise, the function will
be switched off automatically.
Q: Why does the battery SOC suddenly jump to 95% on the Portal?
A: This normally happens when BMS communications fail when using lithium batteries. If the
batteries enter float charge mode, the SOC is automatically reset to 95%.
Battery does not charge
Solution：
1. Make sure that BMS communications are OK on the PV Master App.
2. Check if the CT is connected at the right position and is connected in the right direction per the
User Manual, page 12.
3. Check if the total load power is significantly higher than the PV power.
Q: The battery cannot be fully charged to 100%?
A: The battery will stop charging when the battery voltage reaches the charge voltage set in the PV
Master App.
Q: Why does the battery switch always trip when it starts up (lithium battery)?
A: The switch of the lithium battery trips because of following reasons:
1. BMS communication fails.
2. The battery SOC is too low and the battery trips to protect itself.
3. An electrical short-circuit has occurred on the battery connection side. Alternatively, for other
reasons, Please contact the after-sales department.
Q: Which battery should I use for the ET?
A: For the ET series inverter, it can connect to lithium batteries which have compatibility with
ET-series inverters with nominal voltages from 180 V to 600 V. For compatible lithium batteries,
please refer to the battery list in the PV Master App.
About PV Master Operation And Monitoring
Q: Why can't I save settings on the PV Master App?
A: This could be caused by losing the connection to Solar-Wi-Fi *.
1. Make sure you have already connected to Solar-Wi-Fi* (make sure that no other devices are
connected) or to the router (if Solar-Wi-Fi* is connected to the router). The APP homepage
shows the connections.
2. Make sure you restart the inverter 10 mins after you have changed any settings because the
inverter will save the settings every 10 mins while operating in normal mode. We recommend
that parameter settings be changed when the inverter is in wait mode.
Q: Why are the data displayed on the homepage different from the param page, like
charge/discharge, PV value, load value, or grid value?
A: The data refresh frequency is different, so there will be data discrepancies between different
pages on the APP as well as between these shown on the portal and APP.
Q: Some columns show NA, like battery SOH, etc. Why does that happen?
A: NA means that the App has not received data from the inverter or server because of communica-
tion problems, such as battery communications and the communications between inverter and
the App.
26
25

4.3 Disclaimer
The ET series inverters are transported, used and operated under environmental and electrical
conditions. The manufacturer has the right to not provide after-sales services or assistance under
the following conditions:
• The inverter is damaged during transfer.
• The inverter is out of the warranty year and an extended warranty is not purchased.
• The inverter is installed, refitted, or operated in improper ways without authorization from the
manufacturer.
• The inverter is installed or used under improper environmental or technical conditions (as
mentioned in this User Manual) and without authorization from manufacturer.
• The installation or configuration of the inverter does not follow the requirements mentioned in
this User Manual.
• The inverter is installed or operated contrary to the requirements or warnings mentioned in this
User Manual.
• The inverter is broken or damaged by any force majeure, such as lightening, earthquake, fire
hazard, storm and volcanic eruption etc.
• The inverter is disassembled, changed or updated on software or hardware without authoriza-
tion from the manufacturer.
• The Inverter is installed, used, or operated against any related provisions contained in interna-
tional or local policies or regulations.
• Any incompatible batteries, loads or other devices are connected to the ET system.
• Specifications are subject to change without notice. Every effort has been made to make this
document complete, accurate and up-to-date. However, GoodWe may need to make some
improvements under certain circumstances without advance notice. GoodWe shall not be
responsible for any loss caused by this document including, but not limited omissions errors,ty-
pographical errors, arithmetical errors or listing errors in this document.
If you have any questions or suggestions, please contact GoodWe after-sale.
Note: The manufacturer retains the right to explain all of the contents in this User Manual. To insure IP66,
the inverter must be sealed well; please install the inverters within one day of unpacking; otherwise,
please seal all unused terminals /holes; unused terminals/holes are not allowed to remain open; and
confirm that there is no risk of water or dust entering any terminals/holes.
Maintenance
The inverter requires periodic maintenance; the details are shown below:
• In any case, cut off the voltage supply of PV, battery and AC Grid, and then carry out maintenance.
Make sure the inverter is totally isolated from all DC and AC power for at least 5 mins before
maintenance.
• Heat sink: Please use a clean towel to clean the heat sink once a year.
• Torque: Please use a torque wrench to tighten the AC and DC wiring connections once a year.
• DC breaker: Check DC breaker regularly and activate the DC breaker 10 times in a row once per
year.
• Activating the DC breaker will clean the contacts and extend the lifespan of the DC breaker.
• Waterproof covers: Check to see that the waterproof covers of RS485 and other parts are replaced
once per year.
About the Smart Meter And Power Limit Function
Q: How to activate the output power limit function?
A: For the ET system, this function can be activated by following these steps:
1. Make sure the Smart Meter connections and communications are functioning correctly.
2. Turn on the export power limit function and set the maximum output power to the grid on the
APP.
Note: Even if the output power limit is set to 0W, there might still be a deviation of a maximum of 100 W
when exporting to the grid.
Q: Why is there still power exporting to the grid after I have set the power limit to 0 W?
A: The export limit could theoretically be 0W but there will be a deviation of around 50‒100 W for
the ET system.
Q: Can I use other meter brands to take over from the Smart Meter in the ET system or to
change settings in Smart Meter?
A: No, because the communication protocol is integrated into the inverter and Smart Meter, other
meter brands cannot communicate. Also, any change to the manual settings could cause a
meter communication failure.
Q: What is the maximum current allowed to pass through the CT on the Smart Meter?
A: The maximum current for the CT is 120A.
Other Questions
Q: Is there a quick way to make the system work?
A: For the shortest resolution, please refer to "ET Quick Installation Instructions" and to the "PV
Master App Instructions".
Q: What kind of load can I use to connect to the backup side?
A: Please refer to User Manual on page 12.
Q: Will the warranty of the inverter still be valid if, for some special conditions, we cannot
follow 100% of the User Manual instructions for installation or operation?
A: Normally we still provide technical support for problems caused by not following the instruc-
tions in the User Manual. However we cannot guarantee any replacements or returns. So, if
there are any special conditions for which you cannot follow the instructions 100%, please
contact the after-sales department for suggestions.
28
27

4.4 Technical Parameters
[1] For 1000V system, maximum operating voltage is 950V. For AustraliaL(Max. DC Input Voltage 600V) safety
regulation, there will be a warning if PV voltage > 600V.
[2] For AustraliaL(Max. DC Input Voltage 600V) safety regulation, MPPT range is 200~550V.
[3] For AustraliaL(Max. DC Input Voltage 600V) safety regulation, MPPT voltage upper limit is 550V.
[4] For AustraliaL(Max. DC Input Voltage 600V) safety regulation, nominal DC input voltage is 450V.
[5] According to the local grid regulation.
[6] Can be reached only if PV and battery power is enough.
[7] CAN communication is configured by default. If 485 communication is used, please replace the correspond-
ing communication line.
[8] No Back-up Output.
[9] Not all certifications & standards listed, check the official website for details.
GW5KL-ET
24
GW6KL-ET
24
GW8KL-ET
25
GW10KL-ET
25
Integrated
Integrated
Integrated
Integrated
Integrated
Integrated
Integrated
Integrated
Class I
-35~60
0~95%
Outdoor & indoor
Grade1、2、3
DC II: ACIII
≤4000
Nature Convection
<30
LED & APP
RS485; CAN
RS485
RS485 (Insulated)
Wi-Fi
516*415*180
Wall Bracket
IP66
DVC-C
<15
Battery Non-Isolation
AS/NZS 4777.2:2015
IEC62109-1&2
EN61000-6-1, EN61000-6-2, EN61000-6-3, EN61000-6-4,
EN61000-4-16, EN61000-4-18, EN61000-4-29
Technical Data
Protection
Anti-Islanding Protection
PV String Input Reverse Polarity Protection
Insulation Resistor Detection
Residual Current Monitoring Unit
Output Over Current Protection
Output Short Protection
Battery Input Reverse Polarity Protection
Output Over Voltage Protection
Protective Class
General Data
Operating Temperature Range (℃)
Relative Humidity
Environment Category
External Environment Pollution Degree
Over voltage category
Operating Altitude (m）
Cooling
Noise (dB)
User Interface
Communication with BMS [7]
Communication with Meter
Communication with EMS
Communicaiton with Portal
Weight (kg)
Size (Width*Height*Depth mm）
Mounting
Protection Degree
The decisive voltage class (DVC)
Standby Self Consumption (W) [8]
Topology
Certifications & Standards [9]
Grid Regulation
Safety Regulation
EMC
GW5KL-ET
6650
1000
200~850
180~1000
180
210
240~850
620
12.5/12.5
15.2/15.2
2
0
1/1
5000
5500
10000
400/380, 3L/N/PE
50/60
8.5
15.2
5000
10000, 60sec
8. 5
400/380
50/60
<3%
GW6KL-ET
7980
1000
200~850
180~1000
180
210
285~850
620
12.5/12.5
15.2/15.2
2
0
1/1
6000
6600
12000
400/380, 3L/N/PE
50/60
10.5
18.2
6000
12000, 60sec
10.5
400/380
50/60
<3%
GW8KL-ET
10640
1000
200~850
180~1000
180
210
260~850
620
12.5/22
15.2/27.6
2
0
1/2
8000
8800
15000
400/380, 3L/N/PE
50/60
13.5
22.7
8000
16000, 60sec
13.5
400/380
50/60
<3%
GW10KL-ET
13300
1000
200~850
180~1000
180
210
320~850
620
12.5/22
15.2/27.6
2
0
1/2
10000
11000
15000
400/380, 3L/N/PE
50/60
16.5
22.7
10000
16500, 60sec
16.5
400/380
50/60
<3%
Li-Ion
180~600
25
25
Self-Adaption To BMS
~1 (Adjustable from 0.8 leading to 0.8 lagging)
<3%
97.6%
97.5%
96.8%
99.9%
Technical Data
Battery Input Data
Battery Type
Battery Voltage Range (V)
Max. Charging Current (A)
Max. Discharging Current (A)
Charging Strategy For Li-Ion Battery
PV String Input Data
Max. DC Input Power (W)
Max. DC Input Voltage (V) [1]
MPPT Range (V) [2]
PV Input Operating Voltage Range（V）
Start-up Voltage (V)
Min. Feed-in Voltage (V)
MPPT Range for Full Load (V) [3]
Nominal DC Input Voltage (V) [4]
Max. Input Current (A)
Max. Short Current (A)
No. Of MPP Trackers
Maximum Inverter Backfeed Current to Array(A)
No. Of Strings Per MPP Tracker
AC Output Data (On-grid)
Nominal Apparent Power Output to Utility Grid (VA)
Max. Apparent Power Output to Utility Grid (VA) [5]
Max. Apparent Power from Utility Grid (VA)
Nominal Output Voltage (V)
Nominal Output Freqency (Hz)
Max. AC Current Output to Utility Grid (A)
Max. AC Current From Utility Grid (A)
Output Power Factor
Output THDi (@Nominal Output)
AC Output Data (Back-up)
Max. Output Apparent Power (VA)
Peak Output Apparent Power (VA) [6]
Max. Ouput Current (A)
Nominal Output Voltage (V)
Nominal Output Frequency (Hz)
Output THDv (@Linear Load)
Efficiency
Max. Efficiency
Max. Battery To Load Efficiency
Europe Efficiency
MPPT Efficiency
30
29

[1] For 1000V system, maximum operating voltage is 950V.
[2] According to the local grid regulation.
[3] Optional function in German market
[4] Can be reached only if PV and battery power is enough.
[5] CAN communication is configured by default. If 485 communication is used, please replace the correspond-
ing communication line.
[6] No back-up output.
[7] Not all certifications & standards listed, check the official website for details.
GW5K-ET
24
GW6.5K-ET
24
GW8K-ET
25
GW10K-ET
25
Integrated
Integrated
Integrated
Integrated
Integrated
Integrated
Integrated
Integrated
Class I
-35~60
0~95%
Outdoor & indoor
Grade1、2、3
DC II: ACIII
≤4000
Nature Convection
<30
LED & APP
RS485; CAN
RS485
RS485 (Insulated)
Wi-Fi
516*415*180
Wall Bracket
IP66
DVC-C
<15
Battery Non-Isolation
VDE-AR-N 4105; VDE 0126-1-1 EN 50549-1; G98, G99, G100; CEI 0-21
IEC62109-1&2
EN61000-6-1, EN61000-6-2, EN61000-6-3, EN61000-6-4,
EN61000-4-16, EN61000-4-18, EN61000-4-29
Technical Data
Protection
Anti-Islanding Protection
PV String Input Reverse Polarity Protection
Insulation Resistor Detection
Residual Current Monitoring Unit
Output Over Current Protection
Output Short Protection
Battery Input Reverse Polarity Protection
Output Over Voltage Protection
Protective Class
General Data
Operating Temperature Range (℃)
Relative Humidity
Environment Category
External Environment Pollution Degree
Over voltage category
Operating Altitude (m）
Cooling
Noise (dB)
User Interface
Communication with BMS [5]
Communication with Meter
Communication with EMS
Communicaiton with Portal
Weight (kg)
Size (Width*Height*Depth mm）
Mounting
Protection Degree
The decisive voltage class (DVC)
Standby Self Consumption (W) [6]
Topology
Certifications & Standards [7]
Grid Regulation
Safety Regulation
EMC
GW5K-ET
6500
1000
200~850
180~1000
180
210
240~850
620
12.5/12.5
15.2/15.2
2
0
1/1
5000
5500
10000
400/380, 3L/N/PE
50/60
8.5
15.2
5000
10000, 60sec
8. 5
400/380
50/60
<3%
GW6.5K-ET
8450
1000
200~850
180~1000
180
210
310~850
620
12.5/12.5
15.2/15.2
2
0
1/1
6500
7150
13000
400/380, 3L/N/PE
50/60
10.8
19.7
6500
13000, 60sec
10.8
400/380
50/60
<3%
GW8K-ET
9600
1000
200~850
180~1000
180
210
380~850
620
12.5/12.5
15.2/15.2
2
0
1/1
8000
8800
15000
400/380, 3L/N/PE
50/60
13.5
22.7
8000
16000, 60sec
13.5
400/380
50/60
<3%
GW10K-ET
13000
1000
200~850
180~1000
180
210
460~850
620
12.5/12.5
15.2/15.2
2
0
1/1
10000
11000
15000
400/380, 3L/N/PE
50/60
16.5
22.7
10000
16500, 60sec
16.5
400/380
50/60
<3%
Li-Ion
180~600
25
25
Self-Adaption To BMS
~1 (Adjustable from 0.8 leading to 0.8 lagging)
<3%
Technical Data
Battery Input Data
Battery Type
Battery Voltage Range (V)
Max. Charging Current (A)
Max. Discharging Current (A)
Charging Strategy For Li-Ion Battery
PV String Input Data
Max. DC Input Power (W)
Max. DC Input Voltage (V) [1]
MPPT Range (V)
PV Input Operating Voltage Range（V）
Start-up Voltage (V)
Min. Feed-in Voltage (V)
MPPT Range for Full Load (V)
Nominal DC Input Voltage (V)
Max. Input Current (A)
Max. Short Current (A)
No. Of MPP Trackers
Maximum Inverter Backfeed Current to Array(A)
No. Of Strings Per MPP Tracker
AC Output Data (On-grid)
Nominal Apparent Power Output to Utility Grid (VA)
Max. Apparent Power Output to Utility Grid (VA) [2]
Max. Apparent Power from Utility Grid (VA)
Nominal Output Voltage (V)
Nominal Output Freqency (Hz)
Max. AC Current Output to Utility Grid (A)
Max. AC Current From Utility Grid (A)
Output Power Factor
Output THDi (@Nominal Output)
AC Output Data (Back-up) [3]
Max. Output Apparent Power (VA)
Peak Output Apparent Power (VA) [4]
Max. Ouput Current (A)
Nominal Output Voltage (V)
Nominal Output Frequency (Hz)
Output THDv (@Linear Load)
Efficiency
Max. Efficiency
Max. Battery To Load Efficiency
Europe Efficiency
MPPT Efficiency
98.0%
97.5%
97.2%
99.9%
98.2%
97.5%
97.5%
99.9%
32
31

4.5 Other Tests
For Australian requirements, in the THDi test, Zref should be added between the inverter and
mains.
RA, XA for the line conductor
RN, XN for the neutral conductor
Zref:
RA = 0, 24, XA = j0,15 at 50Hz
RN = 0, 16, XN = j0,10 at 50Hz
4.6 Quick Checklist To Avoid Dangerous Conditions
1. The inverter must not be installed near flammable or explosive materials or near equipment
with strong electromagnetic fields. Please refer to page 6.
2. Remember that this inverter is heavy! Please be careful when lifting from the package. Please
refer to page 07
3. Make sure that the battery breaker is off and that the nominal battery voltage meets ET specifi-
cations before connecting the battery to the inverter; make sure that the inverter is totally
isolated from both PV and AC power. Please refer to page 9.
4. Make sure that the inverter is totally isolated from all DC or AC power before connecting the AC
cable. Please refer to page 11.
5. Make sure the AC cable is totally isolated from AC power before connecting the Smart Meter and
CT. Please refer to page 14.
Category I
Category II
Category III
Category IV
Applies to equipment connected to circuits where measures have been
taken to reduce transient overvoltages to a low level.
Applies to equipment which is not permanently connected to the
installation. Examples are appliances, portable tools, and other plug-con-
nected equipment.
Applies to downstream fixed equipment and includes the main distribu-
tion board. Examples are switchgear and other equipment in an industrial
installation.
Applies to equipment permanently connected at the origin of an installa-
tion (i.e. upstream of the main distribution board). Examples are electricity
meters, primary overcurrent protection equipment and other equipment
connected directly to outdoor open lines.
Appendix protection category definition
Overvoltage category definition
Environment category definition
Level
3K3
0~+40℃
5%~85%
4K3
-33~+40℃
15%~100%
4K4H
~20~+55℃
4%~100%
Environment Condition
Outdoor
Indoor Unconditioned
Indoor conditioned
Ambient Temperature
-20~50℃
-20~50℃
0~40℃
Relative Humidity
4%~100%
5%~95%
5%~85%
Applied to
PD3
PD3
PD2
Moisture location category definition
Moisture Parameters
Temperature Range
Moisture Parameters 34
33

No pollution or only dry, non-conductive pollution occurs.
The pollution has no influence.
Normally only non-conductive pollution occurs. Occasionally,
however, temporary conductivity caused by condensation is
expected.
Conductive pollution occurs, or dry, non-conductive pollution
occurs, which becomes conductive due to condensation,
which is an expected condition.
Persistent conductive pollution occurs; for example, pollution
caused by conductive dust, rain, or snow.
Pollution degree definition
Pollution Degree I
Pollution Degree II
Pollution Degree III
Pollution Degree IV
35